Step 1: Prepare the Cranberry Sauce
1. Cook Cranberries: In a saucepan, combine cranberries, sugar, and water. Bring to a boil over medium heat, then reduce to a simmer. Cook for about 10 minutes, or until the cranberries burst and the mixture thickens. Remove from heat and let cool.

Step 2: Prepare the Baguette
1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Toast Baguette Slices: Arrange the baguette slices on a baking sheet. Lightly drizzle with olive oil and bake for about 10 minutes, or until golden and crispy.

Step 3: Mix the Cheese Spread
1. Combine Ingredients: In a bowl, mix the softened cream cheese, chopped rosemary, salt, and pepper until well combined.

Step 4: Assemble the Crostini
1. Spread Cheese: Once the baguette slices are toasted, spread a generous layer of the cream cheese mixture on each slice.
2. Top with Cranberries: Spoon the cranberry sauce over the cream cheese layer.

Step 5: Garnish and Serve
1. Garnish: Finish with a sprinkle of fresh rosemary on top for added flavor and presentation.
2. Serve: Arrange the crostini on a platter and serve immediately.